Characterization of solid product obtained via chemical degradation process of low grade lignite and waste tyre

In this study, the chemical degradation of waste tire rubbers crumb- low grade lignite mixture was carried out in the reaction vessel by using inorganic and organic chemicals such as sulphuric acid (H2SO4), sodium hydroxide (NaOH) and methyl-alcohol (CH3OH) to decompose at the 140 ºC reaction temperatures and 18 minute reaction time under the atmospheric pressure. Solid and liquid phase were filtrated after chemical degradation. Ash and sulphur removal were provided as used chemical washing treatment in acid-base and base-acid ambiance as succesive with various chemical materials (2M NaOH; 0.75M KOH; 3MHCl; 33.5MHCl+10.07M HNO3) in different concentrations to solid product. Elemental analysis of the solid products was performed on a LECO CHNS 628 model elemental analyzer. Determination of ash, moisture and volatile matter was performed according to ASTM Standards. The surface morphology of solid product was performed by means of a scanning electron microscope (SEM-ZEISS Supra 40VP). BET surface area measurements using N2 gas adsorption isotherms were completed with a Micromeritics ASAP 2020 gas adsorption porosimeter. The Infrared analyses were obtained using Perkin Elmer Spectrum 100 model FTIR spectrometer with (ATR). The data obtained from the chemical, physical and morphological analyzes of the product obtained as a result of the chemical degradation of the waste rubber crump- low quality lignite mixture is promising.

Kimyasal bozundurma prosesiyle atýk lastik ve düþük kaliteli linyit karýþýmýndan elde edilen katý ürünün karakterizasyonu

Bu çalýþmada, atýk lastik kýrpýntýlarý(ALK) ve düþük kaliteli linyit içeren karýþýmýn bir reaksiyon kabýnda sülfürik asit (H2SO4), sodyum hidroksit (NaOH) ve metil alkol (CH3OH) gibi organik ve inorganik maddeler ile kimyasal olarak bozundurulmasý atmosferik ortamda 140 ºC reaksiyon sýcaklýðý ve 18 dakika reaksiyon süresinde gerçekleþtirildi. Kimyasal bozundurma iþleminden sonra katý ve sývý faz filtre edilerek ayrýlmýþtýr. Katý ürüne farklý konsantrasyonlarda çeþitli kimyasal maddelerle (2M NaOH; 0.75M KOH; 3MHCl; 3.5MHCl+10.07M HNO3) ardýþýk olarak asit-baz, baz-asit ortamlarýnda kimyasal yýkama iþlemi uygulanarak kül ve kükürt giderimi saðlanmýþtýr.Elde edilen katý ürünün elementel analizi LECO CHNS 628 model elementel analiz cihazýnda belirlenmiþtir. Kül, nem, ucucu madde miktarlarý ASTM standartlarýna göre belirlenmiþtir.Katý ürünün yüzey morfolojisi taramalý elektron mikroskopisi (SEM-ZEISS Supra 40VP) ile belirlenmiþtir. BET yüzey alaný N2 gazý absorpsiyon isotermleri kullanýlarak Micromeritics ASAP 2020 gaz adsorpsiyom porozimetresi ile ölçülmüþtür. Perkin Elmer Spectrum 100 model FTIR spectrometer (ATR) ile IR analizi yapýlmýþtýr. Sonuç olarak, atýk lastik kýrpýntýlarý ile düþük kaliteli linyit içeren karýþýmýn kimyasal olarak bozundurulmasý sonucunda elde edilen ürünün, kimyasal, fiziksel ve morfolojik analizlerinden elde edilen veriler ümit vericidir.